this comment is going to piss some of you off but oh well...my curiosity got the best of me and i took one clone and open'd up the rockwool to see if there was any growth...nope...not a single root sprout on day 4-5...i have one clone that was starting to show some wilting so i used that one as the sacrificial lamb so to speak....other three are still perky and lush green...will keep updated....